Evaluation of selected features ofStaphylococcus cohnii enabling colonization of humans

Waldon, E; Sobiś-Glinkowska, M; Szewczyk, Eligia M.

doi:10.1007/bf02818799

Cited by 15 publications

(7 citation statements)

References 19 publications

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“…Molecular biotyping of genomic DNA, initially restricted to five colonies of Staph. cohnii , the most representative bacterium in both frescoes and a potential human pathogen (Waldon et al. 2002), showed a similar restriction pattern in four of five strains (Fig.…”

Section: Resultsmentioning

confidence: 76%

Identification, molecular biotyping and ultrastructural studies of bacterial communities isolated from two damaged frescoes of St Damian's Monastery in Assisi*

Radaelli¹,

Paganini

Basavecchia

et al. 2004

Lett Appl Microbiol

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Aim: To investigate the composition of the microbial community in biodeterioration of two frescoes in St Damian's Monastery in Assisi. Methods and Results: A total of 1292 colonies were isolated from the most deteriorated parts, analysed by microbiological, biomolecular and ultrastructural techniques, and taxonomically classified. Molecular biotyping of Staphylococcus cohnii colonies, one of the most prevalent bacterial species, showed a very restricted genome diversity while Bacillus licheniformis were very homogeneous by RFLP, tDNA-PCR and random-amplified polymorphic DNA. Electron microscopy confirmed heterogeneity of the bacterial population in the different sampling areas. Conclusions: Several of the identified species are widespread in the soil or saprophytes of human skin. Although unable to demonstrate that they are involved in biodeterioration, they may represent trophic elements contributing to fungi-related chromatic alterations when adequate environmental conditions occur. Deterioration may in part be prevented or controlled by adequate air filtering or conditioning of the room.

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Section: Resultsmentioning

confidence: 76%

Identification, molecular biotyping and ultrastructural studies of bacterial communities isolated from two damaged frescoes of St Damian's Monastery in Assisi*

Radaelli¹,

Paganini

Basavecchia

et al. 2004

Lett Appl Microbiol

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“…This was demonstrated by Č ižnár (175) in a study of 20 isolates from environmental sources, human cases of gastroenteritis, and animal sources. Here, the isolates belonged to 13 different serovars; the majority of strains were both hydrophobic, indicating their ability to interact with a wide variety of surfaces including mammalian cells, and had a relatively high level of flagellar motility to facilitate attachment; all produced triacylglycerol lipase, which is a virulence factor found in Staphylococcus aureus (177), Staphylococcus cohnii (178), and Pseudomonas (Burkholderia) cepacia (179). However, among these strains, there was significant variation in elastase, proteinase, histidine decarboxylase, and hemolysin activities.…”

Section: Enteropathogenicitymentioning

confidence: 99%

Plesiomonas shigelloides Revisited

Janda¹,

2016

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SUMMARYAfter many years in the familyVibrionaceae, the genusPlesiomonas, represented by a single species,P. shigelloides, currently resides in the familyEnterobacteriaceae, although its most appropriate phylogenetic position may yet to be determined. Common environmental reservoirs for plesiomonads include freshwater ecosystems and estuaries and inhabitants of these aquatic environs. Long suspected as being an etiologic agent of bacterial gastroenteritis, convincing evidence supporting this conclusion has accumulated over the past 2 decades in the form of a series of foodborne outbreaks solely or partially attributable toP. shigelloides. The prevalence ofP. shigelloidesenteritis varies considerably, with higher rates reported from Southeast Asia and Africa and lower numbers from North America and Europe. Reasons for these differences may include hygiene conditions, dietary habits, regional occupations, or other unknown factors. Other human illnesses caused byP. shigelloidesinclude septicemia and central nervous system disease, eye infections, and a variety of miscellaneous ailments. For years, recognizable virulence factors potentially associated withP. shigelloidespathogenicity were lacking; however, several good candidates now have been reported, including a cytotoxic hemolysin, iron acquisition systems, and lipopolysaccharide. WhileP. shigelloidesis easy to identify biochemically, it is often overlooked in stool samples due to its smaller colony size or relatively low prevalence in gastrointestinal samples. However, one FDA-approved PCR-based culture-independent diagnostic test system to detect multiple enteropathogens (FilmArray) includesP. shigelloideson its panel. Plesiomonads produce β-lactamases but are typically susceptible to many first-line antimicrobial agents, including quinolones and carbapenems.

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“…Most of the isolated strains were resistant to different antibiotics, including methicillin (Szewczyk & Rozalska, 2000). Other features of these bacteria – defined as virulence factors of staphylococci – were investigated, for example hydrophobicity and production of glycocalix (Szewczyk & Rozalska, 2000), adherence to different surfaces (Waldon & Szewczyk, 2002), sensitivity to fatty acids and solicitation of iron from other sources (Waldon et al , 2002) as well as production of siderophores (Szarapinska‐Kwaszewska & Farkas, 2003). Plasmid profiles (Szewczyk et al , 2004) and the metabolic diversity of these isolates were also studied (Szewczyk et al , 2003).…”

Section: Introductionmentioning

confidence: 99%

The amino acid sequences and activities of synergistic hemolysins fromStaphylococcus cohnii

Mak¹,

Maszewska²,

Rózalska³

2008

FEMS Microbiology Letters

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Staphylococcus cohnii ssp. cohnii and S. cohnii ssp. urealyticus are a coagulase-negative staphylococci considered for a long time as unable to cause infections. This situation changed recently and pathogenic strains of these bacteria were isolated from hospital environments, patients and medical staff. Most of the isolated strains were resistant to many antibiotics. The present work describes isolation and characterization of several synergistic peptide hemolysins produced by these bacteria and acting as virulence factors responsible for hemolytic and cytotoxic activities. Amino acid sequences of respective hemolysins from S. cohnii ssp. cohnii (named as H1C, H2C and H3C) and S. cohnii ssp. urealyticus (H1U, H2U and H3U) were identical. Peptides H1 and H3 possessed significant amino acid homology to three synergistic hemolysins secreted by Staphylococcus lugdunensis and to putative antibacterial peptide produced by Staphylococcus saprophyticus ssp. saprophyticus. On the other hand, hemolysin H2 had a unique sequence. All isolated peptides lysed red cells from different mammalian species and exerted a cytotoxic effect on human fibroblasts.

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Evaluation of selected features ofStaphylococcus cohnii enabling colonization of humans

Cited by 15 publications

References 19 publications

Identification, molecular biotyping and ultrastructural studies of bacterial communities isolated from two damaged frescoes of St Damian's Monastery in Assisi*

Identification, molecular biotyping and ultrastructural studies of bacterial communities isolated from two damaged frescoes of St Damian's Monastery in Assisi*

Plesiomonas shigelloides Revisited

The amino acid sequences and activities of synergistic hemolysins fromStaphylococcus cohnii

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